[dovecot/core] a85c62: lib: Mark istream with eof=TRUE on all errors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: a85c629c5d75a5fd9489ba14d5d4f54f3cddd591
      https://github.com/dovecot/core/commit/a85c629c5d75a5fd9489ba14d5d4f54f3cddd591
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2016-11-14 (Mon, 14 Nov 2016)

  Changed paths:
    M src/lib/istream.c

  Log Message:
  -----------
  lib: Mark istream with eof=TRUE on all errors

Previously only i_stream_read() did this, but i_stream_seek(), _stat(),
_get_size() and _create() didn't. This caused assert-crashes on error
conditions in code which assumed that when stream_errno != 0, eof==TRUE.